<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>菜鸟教程</title>
</head>
<body>
    <h4>无序列表：</h4>
    <ul>
        <li>coffee</li>
        <li>tea</li>
        <li>milk</li>
    </ul>
    </body>
</html>